Right frontal areas 6 and 8 are associated with simultanapraxia, a subset of motor impersistence.
case_series · Level IV
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Abstract
The authors examined brain lesions that cause simultanapraxia, a subset of motor impersistence. Simultanapraxia was defined as the inability to perform two motor acts simultaneously: closing the eyes and protruding the tongue. Simultanapraxia was found in 9 (5.6%) of 160 hospitalized patients with cerebrovascular diseases. The lesions were located in areas 6 and 8 in the right middle cerebral artery territory. This site was spared in five patients who did not show simultanapraxia, even with a large infarction in the right middle cerebral artery area.